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Is your ISP blocking outgoing port 25?
- Subject: Is your ISP blocking outgoing port 25?
- From: jeroen at easyhosting.nl (Jeroen Wunnink)
- Date: Fri, 19 Jun 2009 09:53:11 +0200
- In-reply-to: <[email protected]>
- References: <01aa01c9f04c$1d0a8820$e76ed48d@zhiyunpc> <[email protected]> <[email protected]>
We just open port 2525 for customers from ISP's blocking official SMTP
ports so they can use their dedicated servers/domain mailservers.
Lyndon Nerenberg wrote:
> On Thu, 2009-06-18 at 16:14 -0400, Joe Provo wrote:
>
>> then you should be shifting your userbase to authenticated on the
>> SUBMIT
>> port [587] anyway...
>>
>
> Except for those ISPs who choose to intercept port 587 as well. This is
> a big problem with Rogers in Vancouver. They hijack port 587 connections
> through some sort of lame proxy that connects you to your intended host,
> but strips the AUTH field out of the EHLO response from the remote
> submission server ...
>
>
>
--
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Jeroen Wunnink,
EasyHosting B.V. Systeembeheerder
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